Spare Hi-Fi speaker and microphone set to suit all current generation and legacy Yueny-Moto BT Intercoms.

Plug is a 4 pole 3.5mm.

Suits BTR4, BT R8, BTG3 HiFi Bluetooth intercoms.

Also an excellent upgrade for legacy intercoms including Bt Multi, Bt Super, early BTG3, BTG6, BTG7 and BTG8.

These will also plug straight into an iPhone (possibly other types of cellphone as well) which would give you a set of helmet speakers and a microphone for phone calls at a bargain price. We have tested this and the sound quality is very good.